Fatal error: Uncaught Error: Interface "ifirma\ToJsonInterface" not found in /usr/home/CLT/domains/dev.biou.pl/public_html/modules/ifirma/connector/AccountancyMonthParam.php:12
Stack trace:
#0 {main}
  thrown in /usr/home/CLT/domains/dev.biou.pl/public_html/modules/ifirma/connector/AccountancyMonthParam.php on line 12